ACTIV Financial Systems website screenshot

ACTIV Financial Systems

ACTIV Financial Systems is a provider of real-time and historical financial market data, best known for the ACTIV Feed consolidated multi-asset market data feed delivering global equities, options, futures, foreign exchange, and fixed income content with associated analytics and low-latency delivery to trading firms, banks, and financial applications. ACTIV Financial was acquired by Options Technology (Options-IT) in 2021 and its market data capabilities are delivered as part of the Options Atlas platform; www.activfinancial.com now redirects to www.options-it.com. A live public developer surface remains: the OnePlatform Web API (One API), a WebSocket/WebAssembly JavaScript API with a developer portal at weboneapi.activfinancial.com and 25 first-party packages on npm under the @activfinancial scope, with gateway hosts and credentials provisioned per customer rather than self-serve.

ACTIV Financial Systems publishes 1 API on the APIs.io network. Tagged areas include Company, Fintech, Market Data, Financial Data, and Real-Time Data.

ACTIV Financial Systems’ developer surface includes documentation, API reference, getting-started guide, sandbox, support, engineering blog, authentication, and 13 more developer resources.

🌐 Visit website 📡 Source on GitHub
25.7/100 emerging ▬ flat Agent 13/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs
CompanyFintechMarket DataFinancial DataReal-Time DataStreamingWebSocketTrading InfrastructureOptions Technology

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 25.7/100 · emerging
Contract Quality 0.0 / 21
Developer Ergonomics 11.1 / 17
Commercial Clarity 1.8 / 17
Operational Transparency 2.3 / 11
Governance 0.0 / 10
Discoverability 6.5 / 9
Regulatory Posture 4.0 / 15
Agent readiness — 13/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Securities & Market Data regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/activ-financial-systems: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

ACTIV OnePlatform Web API (One API)

WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering real-time streaming subscriptions, snapshots, queries, and time-series (tick, intraday...

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Activ Financial Systems Authentication

credentials · 1 scheme

SECURITY

Activ Financial Systems Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

WellKnown
WellKnown
 LLMsTxt
LLMsTxt

Design & Contract 3

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle
 Components
Components
 ErrorCatalog
ErrorCatalog

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support
Support
 StatusPage
StatusPage

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: activ-financial-systems
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/activ-financial-systems.png
name: ACTIV Financial Systems
description: 'ACTIV Financial Systems is a provider of real-time and historical financial market data, best known for the
  ACTIV Feed consolidated multi-asset market data feed delivering global equities, options, futures, foreign exchange, and
  fixed income content with associated analytics and low-latency delivery to trading firms, banks, and financial applications.
  ACTIV Financial was acquired by Options Technology (Options-IT) in 2021 and its market data capabilities are delivered as
  part of the Options Atlas platform; www.activfinancial.com now redirects to www.options-it.com. A live public developer
  surface remains: the OnePlatform Web API (One API), a WebSocket/WebAssembly JavaScript API with a developer portal at weboneapi.activfinancial.com
  and 25 first-party packages on npm under the @activfinancial scope, with gateway hosts and credentials provisioned per customer
  rather than self-serve.'
url: https://raw.githubusercontent.com/api-evangelist/activ-financial-systems/refs/heads/main/apis.yml
x-type: company
x-source: bessemer-venture-partners-portfolio
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-22'
x-acquired-by: options-technology
x-acquirer-url: https://www.options-it.com
tags:
- Company
- Fintech
- Market Data
- Financial Data
- Real-Time Data
- Streaming
- WebSocket
- Trading Infrastructure
- Options Technology
apis:
- name: ACTIV OnePlatform Web API (One API)
  description: WebSocket/WebAssembly JavaScript API for the ACTIV OnePlatform (Options Atlas), delivering real-time streaming
    subscriptions, snapshots, queries, and time-series (tick, intraday bar, history bar) market data through a session contract
    (connect to a OneApi Gateway, then Session.snapshot/subscribe/query/timeSeries). Not REST - the machine-readable contract
    is the TypeDoc JSON shipped in the "@activfinancial/one-api" npm package.
  humanURL: https://weboneapi.activfinancial.com/
  baseURL: https://weboneapi.activfinancial.com
  tags:
  - Market Data
  - Real-Time Data
  - Streaming
  - WebSocket
  - Time Series
  properties:
  - type: Documentation
    url: https://weboneapi.activfinancial.com/documentation
  - type: APIReference
    url: https://weboneapi.activfinancial.com/documentation
  - type: GettingStarted
    url: https://weboneapi.activfinancial.com/tutorials
  - type: Sandbox
    url: https://weboneapi.activfinancial.com/playground
  - type: SourceCode
    url: https://github.com/activfinancial/one-api-examples
  - type: ErrorCatalog
    url: errors/activ-financial-systems-error-codes.yml
  - type: Authentication
    url: authentication/activ-financial-systems-authentication.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.activfinancial.com
- type: DeveloperPortal
  url: https://weboneapi.activfinancial.com/
- type: Documentation
  url: https://weboneapi.activfinancial.com/documentation
- type: APIReference
  url: https://weboneapi.activfinancial.com/documentation
- type: GettingStarted
  url: https://weboneapi.activfinancial.com/tutorials
- type: Sandbox
  url: sandbox/activ-financial-systems-sandbox.yml
- type: GitHubOrganization
  url: https://github.com/activfinancial
- type: Support
  url: https://www.options-it.com/support
- type: Blog
  url: https://www.options-it.com/news
- type: PrivacyPolicy
  url: https://www.options-it.com/privacy
- type: StatusPage
  url: https://status.options-it.com
- type: Lifecycle
  url: lifecycle/activ-financial-systems-lifecycle.yml
- type: Packages
  url: packages/activ-financial-systems-packages.yml
- type: SDKs
  url: packages/activ-financial-systems-packages.yml
- type: Components
  url: components/activ-financial-systems-components.yml
- type: ErrorCatalog
  url: errors/activ-financial-systems-error-codes.yml
- type: Authentication
  url: authentication/activ-financial-systems-authentication.yml
- type: WellKnown
  url: well-known/activ-financial-systems-well-known.yml
- type: LLMsTxt
  url: llms/activ-financial-systems-llms.txt
- type: DomainSecurity
  url: security/activ-financial-systems-domain-security.yml
x-enrichment:
  date: '2026-07-22'
  status: enriched
  pass: round-2026-06-20
  note: contract discovery found the live OnePlatform Web API portal (weboneapi.activfinancial.com), 25 first-party npm packages,
    TypeDoc contract in-package (no OpenAPI - WebSocket/WASM session API), 98-member StatusCode registry, Options Technology
    status page.